Siemens S7-1500 - Page 92

Circuit diagrams
B.1 Circuit diagrams for front connector modules
SIMATIC TOP connect for S7-1500 and ET200MP
92 Manual,
Front connector modules 6ES7921-5CB20-0AA0 and 6ES7921-5CH20-0AA0
For digital I/O modules
Front connector module with potential supply
Connecting terminals in
Screw-type system: 6ES7921-5CB20-0AA0
Push-in system: 6ES7921-5CH20-0AA0
Figure B-4 6ES7921-5CB20-0AA0 and 6ES7921-5CH20-0AA0